The answer is actually A. Sides are named by their angles.
The volume of a cone can be found by using the equation V=(1/3)(pi*r^2*H). Given the information that H= 6cm and V= 8pi cm^3, the expression is 8pi=(1/3)(pi*r^2*6). (The second picture.)
Here is the answer to Question 13
Answer: 300
Step-by-step explanation: 70days is 10 weeks